A numerical analysis of morpho-geographic groups of cultivars of Humulus lupulus based on samples of cones

1981 ◽  
Vol 59 (3) ◽  
pp. 311-324 ◽  
Author(s):  
Ernest Small

Numerical analyses of hop (strobilus) samples showed that the geographical origin of cultivars of Humulus lupulus L. from North America, Britain, continental Europe, and Japan can be identified with considerable reliability on the basis of morphological examination. Samples of hybrid origin between North American and European plants tended to be similar to American cultivars, but often showed combinations of Old and New World characteristics, making their identification problematical.

1951 ◽  
Vol 83 (11) ◽  
pp. 314-315
Author(s):  
Ralph E. Crabill

In 1886 Meinert described a new centipede from New England which he called Geophilus huronicus. This centipede, characterized at some length and with considerable accuracy in the original description. is peculiar in that it is rather unlike any other known North American member of the genus. Perhaps for that reason, as well as because he had never seen huronicus, Attems placed it in his long roster of questionable New World species.


2008 ◽  
Vol 55 (7) ◽  
pp. 959-969 ◽  
Author(s):  
Nahla V. Bassil ◽  
B. Gilmore ◽  
J. M. Oliphant ◽  
K. E. Hummer ◽  
J. A. Henning

2020 ◽  
Vol 11 ◽  
Author(s):  
Fang Wu ◽  
Shou-Jian Li ◽  
Cai-Hong Dong ◽  
Yu-Cheng Dai ◽  
Viktor Papp

The fungus “Fuling” has been used in Chinese traditional medicine for more than 2000 years, and its sclerotia have a wide range of biological activities including antitumour, immunomodulation, anti-inflammation, antioxidation, anti-aging etc. This prized medicinal mushroom also known as “Hoelen” is resurrected from a piece of pre-Linnean scientific literature. Fries treated it as Pachyma hoelen Fr. and mentioned that it was cultivated on pine trees in China. However, this name had been almost forgotten, and Poria cocos (syn. Wolfiporia cocos), originally described from North America, and known as “Tuckahoe” has been applied to “Fuling” in most publications. Although Merrill mentioned a 100 years ago that Asian Pachyma hoelen and North American P. cocos are similar but different, no comprehensive taxonomical studies have been carried out on the East Asian Pachyma hoelen and its related species. Based on phylogenetic analyses and morphological examination on both the sclerotia and the basidiocarps which are very seldomly developed, the East Asian samples of Pachyma hoelen including sclerotia, commercial strains for cultivation and fruiting bodies, nested in a strongly supported, homogeneous lineage which clearly separated from the lineages of North American Wolfiporia cocos and other species. So we confirm that the widely cultivated “Fuling” Pachyma hoelen in East Asia is not conspecific with the North American Wolfiporia cocos. Based on the changes in Art. 59 of the International Code of Nomenclature for algae, fungi, and plants, the generic name Pachyma, which was sanctioned by Fries, has nomenclatural priority (ICN, Art. F.3.1), and this name well represents the economically important stage of the generic type. So we propose to use Pachyma rather than Wolfiporia, and subsequently Pachyma hoelen and Pachyma cocos are the valid names for “Fuling” in East Asia and “Tuckahoe” in North America, respectively. In addition, a new combination, Pachyma pseudococos, is proposed. Furthermore, it seems that Pachyma cocos is a species complex, and that three species exist in North America.


2002 ◽  
Vol 29 (2) ◽  
pp. 265-269
Author(s):  
DAVID W. JOHNSTON

ABSTRACT: Richard Hakluyt in 1582 published the names of certain commodities found in the New World from reports of French sixteenth-century explorers. The commodities included a compiled list of birds, the earliest known from North America.


1980 ◽  
Vol 58 (6) ◽  
pp. 676-686 ◽  
Author(s):  
Ernest Small

European, Japanese, and North American hop cultivars were compared with each other and with wild plants by means of numerical taxonomic analyses of vegetative morphological characters. The cultivars originating from the three geographical areas tended to be distinguishable. European cultivars proved to be very similar to indigenous wild European Humulus lupulus and almost certainly are derived from the wild plants. Japanese cultivars seem to be imported European stocks which have been introgressed by indigenous wild Japanese H. lupulus. Similarly American cultivars appear to be of hybrid origin, apparently between European cultivars and one of the three major indigenous varieties of wild North American plants. All domesticates examined were notably dissimilar to the midwestern United States H. lupulus var. pubescens, suggesting that this taxon is a potential source of new breeding germ plasm.


2019 ◽  
Vol 41 (3) ◽  
pp. 1559-1576 ◽  
Author(s):  
Salvatore Pepi ◽  
Milvia Chicca ◽  
Chiara Telloli ◽  
Antonella Di Roma ◽  
Pietro Grisenti ◽  
...  

1951 ◽  
Vol 16 (3) ◽  
pp. 247-252 ◽  
Author(s):  
Robert F. Heizer

It is generally accepted that the specialized agricultural implements and techniques, and domesticated plants (with a few possible exceptions) of the Old and New Worlds are unrelated and independently developed. Parallel developments in agricultural accessories have occurred; the hoe and irrigation are obvious exemplars. The hand sickle, used to harvest cereal crops in the Old World, and to cut wild grasses in the New World, may now be pointed out as occurring in both hemispheres. The forms, materials, and function of the Old World sickle distinguish it from that of the New World, and it would appear that there is no specific connection between the Afro-Asian sickle used in farming and its North American counterpart used predominantly by incipient or non-agricultural native groups.


Sociobiology ◽  
2020 ◽  
Vol 67 (3) ◽  
pp. 473
Author(s):  
James Wetterer

Syllophopsis  sechellensis  (Emery)  (formerly  Monomorium  sechellense) (Hymenoptera: Formicidae) is a small, inconspicuous ant species native to the Old-World tropics. Syllophopsis sechellensis is widespread in Asia and Australia, and on islands the Indian, Pacific, and Atlantic Oceans. In the New  World,  all  published  records  come  from  West  Indian  islands.  Here,  I report the first records of S. sechellensis from North America: from four sites in Miami-Dade and Broward counties, Florida, more than 1500 km from the closest records in the West Indies. The ants of Florida have been well-studied in the past, so S. sechellensis appears to be a recent arrival.


Genome ◽  
2010 ◽  
Vol 53 (7) ◽  
pp. 545-557 ◽  
Author(s):  
Josef Patzak ◽  
Vladimír Nesvadba ◽  
Karel Krofta ◽  
Alena Henychova ◽  
Arkady Inalovic Marzoev ◽  
...  

Wild hops ( Humulus lupulus L.) are potential new germplasms to expand the variability of genetic resources for hop breeding. We evaluated Canadian (62 plants) and Caucasian (58 plants) wild hops by their chemical characteristics and with molecular genetic analyses using sequence-tagged site and simple sequence repeat markers, in comparison with European (104 plants) and North American (27 plants) wild hops. The contents of alpha and beta acids varied from 0.36% to 5.11% and from 0.43% to 6.66% in Canadian wild hops, and from 0.85% to 3.65% and from 1.22% to 4.81% in Caucasian wild hops, respectively. The contents of cohumulone and colupulone distinctly differed between European and North American wild hops: the cohumulone level in alpha acids was in the range 46.1%–68.4% among North American wild hops and in the range 13.6%–30.6% among European wild hops. The high content of myrcene and the low contents of humulene, farnesene, and selinenes were typical for wild hops from Canada, in contrast to wild hops from the Caucasus region. We compared the chemical characteristics with molecular genetic data. Chemical characteristics differentiated wild hops into North American and Eurasian groups. Molecular genetic analysis was able to separate Caucasian wild hops from European wild hops. We proved a hop phylogeny by means of wide molecular analysis.


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